QX4504 High CMR, High Speed Optocouplers

PublishTime： 2022-11-01 Manufacturer： Qunxin Microelectronics Type： Datasheet Language： English

●Description
■ The QX-4504 contain a GaAsP LED, it is optically coupled to an integrated high gain photo detector. The QX-4504 has short propagation delays and high CTR. The QX-4504 also has a guaranteed propagation delay difference (tPLH-tPHL). The CTR, propagation delay, and CMR are specified both for TTL and IPM conditions which are provided for ease of application. An insulating layer between a LED and an integrated photodetector provide electrical insulation between input and output. Separate connections for the photodiode bias and output transistor collector increase the speed up to a hundred times that of a conventional phototransistor coupler by reducing the base collector capacitance.
●Features
■Short propagation delays for TTL and IPM applications.
■15 kV/μs minimum Common Mode Transient immunity at VCM = 1500 V for TTL/load drive.
■High CTR ﹥25% ( TA = 25°C).
■Electrical specifications for common IPM applications
■TTL compatible.
■Open collector output.

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